Anyone knows these speakers?

@blackbird55 

I'm not hinting that it should be heavily biased to class A, but what it will do on its own is transition itself out from class A to class A/B as you turn the volume up. TECHNICAL AND JUST SIMPLY

That's what Class A/B means.  The point of transition (the volume level) can be low (the amp mainly operates as Class B) or high (the amp mainly operates as Class A).  In Class B mode, there is switching distortion as the signal voltage goes through zero.  Bias applies a voltage offset to keep the signal shifted.  In pure Class A, the shift is sufficient to always keep the signal away from the switching distortion of the zero crossover point.

Class A/B relies on music signals being high enough to overwhelm distortion at the crossover point.  If that works for you, you will be saving on power bills 

They are Markus Grelka speakers from Germany.  I don't believe they are available in the U.S.  I think they are absolutely stunning.  Love the hardwoods and clearly superb craftsmanship. 

I've not heard them, but having built speakers with the Purifi drivers, I would bet that these are exceptional speakers.

https://www.markus-grelka.de/en/#vita


 

blackbird55

 Sounds great... keep listening. And don't buy anything new unless you absolutely have the need to. DON"T CHASE THE DRAGON WHEN YOU ALREADY HAVE THE FIRE AND SPEED OF THE HAWKS  ENJOY

I f'king love it. 'Don't chase the dragon...'